Method and device for adjusting sound volume

Abstract

The invention discloses a method for adjusting sound volume. The method is used for adjusting the sound volume to improve the auditory comfort level. The method comprises the following steps: carrying out audio decoding on audio files; carrying out audio analog gain on audio signals obtained after audio decoding; outputting the audio signals; obtaining the output audio signals and obtaining the values of the sound volume by carrying out sound volume analysis on the output audio signals; judging whether the obtained values of the sound volume are in a preset sound volume range; and adjusting the audio gain value in the step for carrying out audio analog gain on the audio signals obtained after audio decoding when the values of the sound volume are not in the preset sound volume range. The invention also discloses a device for realizing the method.

Description

technical field [0001] The invention relates to audio processing and embedded fields, in particular to a method and device for adjusting volume. Background technique [0002] With the development of electronic technology, various electronic products are flooding around people. While enjoying entertainment, people most seek better audio-visual effects. [0003] General electronic systems have audio processing functions, such as car DVDs, laptops, mobile phones, audio and video equipment, tablets, TVs, Bluetooth headsets, etc. These systems often encounter the problem that the volume of the audio playback is high and low. For example, when using a computer to play multiple mp3 (MPEG-1 layer 3MPEG-1, audio third-layer standard) songs, there are differences due to the different volumes of different songs when they are recorded. If the same signal amplification factor is used during playback (ie Audio signal gain), then cause the volume of some songs to be heard to be too low,...

AI Technical Summary

Problems solved by technology

For example, when using a computer to play multiple mp3 (MPEG-1 layer 3MPEG-1, audio third-layer standard) songs, there are differences due to the different volumes of different songs when they are recorded. If the same signal amplification factor is used during playback (ie audio signal gain), it will cause the volume of some songs to be heard too low, while the volume of some songs is too loud

Sometimes the sudden high volume even damages the hearing, and the low volume also makes the music effect unsatisfactory and produces bad effects

When the TV is playing different channels, there is a similar problem. When switching the TV channel, the volume may suddenly become too low or too high, causing hearing discomfort

[0004] But at present, most of the volume is manually adjusted manually. If the volume is high and low, it needs to be manually adjusted frequently, which is extremely inconvenient to operate.

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